Grade 3 Science Worksheets

Learning Objectives

• Identify the different components that make up soil.
• Understand how particle sizes affect soil texture and drainage.
• Compare sandy, silty, and clay soils in terms of permeability and suitability for plants.+ Show more

Learning Objectives

• Explain how plants get water, minerals, air, and light to survive.
• Describe how animals get food, water, air, and shelter to survive.
• Compare how different species can use different body structures to meet the same needs.

Learning Objectives

• Understand what weathering is and how it changes Earth materials over time.
• Identify different environmental factors that cause weathering.
• Distinguish between weathering and weather.+ Show more

Learning Objectives

• Explain how offspring inherit traits from parents
• Describe how individuals in a population can show variation in inherited traits
• Distinguish inherited traits from traits influenced by the environment+ Show more

Learning Objectives

• Identify major seed dispersal strategies (wind, animal, water, and ballistic) and describe how each works.
• Explain why seed dispersal helps plants colonize new areas and reduces competition with parent plants.
• Describe how dispersal patterns influence gene flow and the spatial distribution of plant populations.+ Show more

Learning Objectives

• Explain how climate differs from weather and how climate is described over long time spans.
• Identify typical temperature and precipitation patterns in regional climate descriptions.
• Use regional climate ideas to predict how plants, animals, and people plan for usual conditions.

Learning Objectives

• Describe how balanced and unbalanced influences affect an object’s motion
• Explain what net influence means as the combined effect of several pushes or pulls
• Predict whether an object stays at rest or changes speed or direction

Learning Objectives

• Identify patterns shown in tables and graphs
• Use data to support a claim with evidence
• Explain how organizing data helps comparisons+ Show more

Learning Objectives

• Identify observable features that can be used to classify organisms
• Use simple classification rules to place organisms into groups
• Compare organisms by their shared observable features+ Show more

Learning Objectives

• Identify key flower parts and explain how they help produce seeds.
• Describe how fruit forms to protect seeds and help with dispersal.
• Explain why seeds are important for starting new plant life cycles.

Learning Objectives

• Understand how to compare the motion of objects based on distance and time.
• Distinguish between steady-speed motion and changing-speed motion using visual and numerical summaries.
• Use ratios and relative language to express which object is faster.+ Show more

Learning Objectives

• Understand that light travels in straight lines.
• Describe how light moves through space and interacts with openings or edges.
• Explain observations related to light paths and regions receiving light.+ Show more

Learning Objectives

• Name the major stages of seed germination, including imbibition, radicle emergence, hypocotyl and epicotyl growth, and true leaf emergence.
• Explain how seed reserves support early growth until the plant can make its own food.
• Describe how moisture, temperature, and oxygen help seeds germinate successfully.

Learning Objectives

• Understand the processes of infiltration, percolation, capillary rise, and runoff in soil water movement.
• Identify how soil texture and structure influence water movement and retention.
• Explain how slope affects surface runoff and water distribution in different landscapes.+ Show more

Learning Objectives

• Identify pushes and pulls as forces that act on objects with a direction
• Describe how forces can start, stop, or change motion
• Use arrows and basic ideas of net force to predict what happens to an object

Learning Objectives

• Explain the basic survival needs of plants and describe how plants get them from the environment.
• Describe the basic survival needs of animals and give examples of how animals meet those needs.
• Compare how different body structures help plants and animals access the same basic needs.+ Show more

Learning Objectives

• Explain how Earth’s tilt and orbit change the height of the Sun and the length of daylight.
• Describe how changes in sunlight can lead to broad seasonal temperature patterns.
• Differentiate predictable seasonal changes from day-to-day weather variations.

Learning Objectives

• Explain how light appears to travel in straight lines in everyday situations
• Describe how blocks and openings change where light can reach
• Use simple evidence to predict which areas will be brighter or darker

Learning Objectives

• Explain how Earth’s daily rotation causes day and night.
• Describe how the Sun’s position in the sky changes across the year.
• Connect seasonal changes to differences in day length at a location.+ Show more

Learning Objectives

• Compare rocks and soil using appearance and physical properties.
• Explain how rock and soil can be separated or changed by pressure and handling.
• Describe how soil is made from smaller particles and organic matter.

Learning Objectives

• Explain how forces can combine to create a single net effect on an object
• Use directional arrows to model co-directional and opposite forces qualitatively
• Describe how a dominant force direction affects resulting motion

Learning Objectives

• Describe steady-speed motion and changing-speed motion using distance-over-time ideas
• Use relative language or simple ratios to explain which object is moving faster
• Interpret short distance-over-time records to order motions and estimate which is faster+ Show more

Learning Objectives

• Explain how multiple simultaneous forces combine to create a net effect on an object’s motion.
• Use directional arrow ideas to determine whether forces add or cancel when they point the same or opposite directions.
• Compare qualitative force strengths to predict the dominant direction of motion.

Learning Objectives

• Observe and describe patterns in an object's motion using distance and time.
• Identify regularities such as constant speed, speeding up on steeper slopes, and slowing down due to friction.
• Use data to predict what motion will look like next.

Learning Objectives

• Identify observable properties of materials, such as color, texture, size, shape, and how they respond to light or touch
• Compare two material samples by describing similarities and differences in their properties
• Use evidence from observations to explain what a material is like

Learning Objectives

• Compare how annuals, biennials, perennials, and woody plants differ in germination, flowering, seed set, and dormancy timing.
• Explain how seeds use dormancy and how seasonal cues help plants begin growth when conditions improve.
• Describe how seed banking and multi-year survival strategies help plant populations persist after unfavorable seasons.+ Show more

Learning Objectives

• Explain how balanced forces affect an object’s motion.
• Identify how unbalanced forces change motion by starting, stopping, or changing direction.
• Compare contact forces (like friction) with the effect of net force on motion.+ Show more

Learning Objectives

• Explain how shadows form when objects block some light.
• Describe how opaque, translucent, and transparent materials affect light and visibility.
• Use observations about light to make and support simple science explanations.

Learning Objectives

• Identify common load types acting on structures, including dead loads and live loads.
• Distinguish point loads from distributed loads using everyday examples.
• Describe how internal forces (compression, tension, bending, and shear) relate to common structure parts such as beams, columns, and arches.+ Show more

Learning Objectives

• Understand how human activities affect soil quality.
• Identify practices that help conserve soil health.
• Recognize environmental consequences of soil disturbance.+ Show more

Learning Objectives

• Describe how matter can change state when thermal energy is added or removed
• Compare what happens to solids, liquids, and gases during melting, freezing, evaporation, and condensation
• Explain how shape, volume behavior, and flow help identify different states of matter

Learning Objectives

• Explain how scientists use evidence to check whether a model’s predictions match observed results.
• Describe how evidence can support or challenge a model.
• Revise a scientific explanation so it fits both the model and the evidence.

Learning Objectives

• Identify different seed dispersal strategies such as wind, animal, water, and ballistic ejection.
• Explain why dispersal helps plants colonize new areas over generations.
• Describe how dispersal patterns can affect gene flow and the spatial distribution of plant populations.

Learning Objectives

• Explain how balanced forces help an object stay at rest.
• Describe what happens when unbalanced forces act on an object.
• Use force-and-motion ideas to interpret everyday situations.

Learning Objectives

• Explain how the properties of rocks and soil make them useful for different jobs.
• Compare how rocks and soil behave with water and movement in the environment.
• Use evidence from a text to match materials to human-built and natural uses.

Learning Objectives

• Describe various methods of seed dispersal such as wind, water, animals, and ballistic mechanisms.
• Explain the ecological significance of seed dispersal patterns for plant populations.
• Characterize how seed morphology and dispersal timing evolve to improve plant survival and spreading.+ Show more

Learning Objectives

• Identify key properties of solids, liquids, and gases (shape, volume, and how they move).
• Use evidence from observations to describe how matter changes behavior in different states.
• Explain how gases spread out, liquids keep volume but change shape, and solids keep both shape and volume.

Learning Objectives

• Describe how xylem moves water using transpiration pull and how phloem moves sugars to support plant growth.
• Compare herbaceous and woody stems, including vascular bundle arrangement and secondary growth in trees.
• Explain how lignified tissues strengthen stems and how structure helps plants handle mechanical stress.

Learning Objectives

• Identify the main parts of vascular plants: roots, stems, leaves, and flowers
• Describe how each plant part helps the plant survive, grow, and reproduce
• Use examples such as taproots, woody stems, broad leaves, and composite flowers to explain plant part functions

Learning Objectives

• Identify observable features (such as body covering, leaf shape, number of legs, and seed coat type) used to classify organisms.
• Use simple, consistent classification rules that are based on visible traits.
• Compare organisms by describing how they are similar or different using shared observable features.+ Show more

Learning Objectives

• Identify major flower parts and describe what roles sepals, petals, stamens, and pistils play in reproduction
• Explain how pollen is produced, how stigma receives pollen, and how fertilization leads to seeds
• Compare wind pollination and animal pollination and describe how nectar, scent, and color can help pollinators

Learning Objectives

• Describe the main stages in a plant life cycle from seed to adult plant.
• Explain how water and air help a seed during early germination.
• Explain how light helps an adult plant make energy and grow leaves.

Learning Objectives

• Sequence the main stages in a plant life cycle from seed to adult plant.
• Explain how water and air help early germination and root growth.
• Describe how light supports energy-making and leaf growth as the plant develops.+ Show more

Learning Objectives

• Explain how warm temperatures can increase evaporation and water vapor in the air
• Describe how cooling air can cause condensation and the formation of clouds
• Identify how precipitation happens when cloud droplets combine and become heavy+ Show more

Learning Objectives

• Describe how an organism’s growth can change its survival needs.
• Explain how young animals and adult animals may require different resources.
• Identify examples of changing behaviors as organisms develop.

Learning Objectives

• Identify properties of rocks and soil that make them useful in different places
• Explain why a material is chosen for a specific human or environmental use
• Compare how rocks and soil behave in simple situations

Learning Objectives

• Identify common life cycle stages for plants and animals
• Explain how needs can change as an organism grows from one stage to the next
• Describe how life cycles help populations continue from one generation to the next+ Show more

Learning Objectives

• Identify temperature, precipitation, and wind as key daily weather observations
• Use weather words to describe conditions for different days
• Compare daily weather data to find simple patterns over several days+ Show more